| Portimao to Commerce City (Colorado) | 4,929.87 mi (7,933.87 km) |
| Portimao to Compton (California) | 5,767.26 mi (9,281.51 km) |
| Portimao to Comstock Park (Michigan) | 3,951.93 mi (6,360.02 km) |
| Portimao to Concord (California) | 5,737.26 mi (9,233.23 km) |
| Portimao to Concord (Missouri) | 4,305.21 mi (6,928.56 km) |
| Portimao to Concord (New Hampshire) | 3,274.28 mi (5,269.44 km) |
| Portimao to Concord (North Carolina) | 3,915.69 mi (6,301.69 km) |
| Portimao to Conneaut (Ohio) | 3,737.90 mi (6,015.56 km) |
| Portimao to Connersville (Indiana) | 4,018.68 mi (6,467.45 km) |
| Portimao to Conroe (Texas) | 4,838.74 mi (7,787.21 km) |
| Portimao to Converse (Texas) | 5,011.55 mi (8,065.32 km) |
| Portimao to Conway (Arkansas) | 4,520.32 mi (7,274.75 km) |
| Portimao to Conway (Florida) | 4,167.07 mi (6,706.25 km) |
| Portimao to Conway (South Carolina) | 3,878.85 mi (6,242.41 km) |
| Portimao to Conyers (Georgia) | 4,139.85 mi (6,662.45 km) |
